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SOA-C02 · Question #405

A company's SysOps administrator maintains a highly available environment. The environment includes Amazon EC2 instances and an Amazon RDS Multi-AZ database. The EC2 instances are in an Auto Scaling…

The correct answer is D. Create an RDS proxy. Point the application to the proxy endpoint. With RDS Proxy, failover times for Aurora and RDS databases are reduced by up to 66%. https://aws.amazon.com/rds/proxy/

Submitted by obi.ng· Mar 30, 2026Reliability and Business Continuity

Question

A company's SysOps administrator maintains a highly available environment. The environment includes Amazon EC2 instances and an Amazon RDS Multi-AZ database. The EC2 instances are in an Auto Scaling group behind an Application Load Balancer. Recently, the company conducted a failover test. The SysOps administrator needs to decrease the failover time of the RDS database by at least 10%. Which solution will meet this requirement?

Options

  • AIncrease the RDS instance size.
  • BModify the RDS cluster to run in a single Availability Zone.
  • CCreate a read replica in another AWS Region. Promote the read replica in case of failure.
  • DCreate an RDS proxy. Point the application to the proxy endpoint.

How the community answered

(40 responses)
  • A
    8% (3)
  • B
    3% (1)
  • C
    10% (4)
  • D
    80% (32)

Explanation

With RDS Proxy, failover times for Aurora and RDS databases are reduced by up to 66%. https://aws.amazon.com/rds/proxy/

Topics

#RDS Multi-AZ#RDS Proxy#failover time#high availability

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